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# TOArad2TOAref
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transforms TOA radiance to TOA reflectance
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Transforms TOA radiance to TOA reflectance
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# Input
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- L1B data
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- Sun earth distance or date
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- Solar zenith angle or position+date
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- Solar irradiance spectrum
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# Output
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- TOAreflectance (overwritten)
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- TOAreflectance (L1B overwritten data cubes)
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- Log file / Error message?
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# Memory Budget
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- < 2 MB
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# Necessary Functions
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- Sun-earth distance (day, month, year)
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- Spectral resampling (spectrum, SRFs, spectral smile)
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# Process Work Flow
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- Calculate sun-earth distance
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- Spectral resampling of solar spectrum for each image cokumn using valid SRFs and spectral smile.
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- Transformation to TOA reflectance using sun-earth-distance, solar irradiance spectraum and solar zenith angle.
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# Testing
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- Input L1B:
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- Reference: |
